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Old 12-15-2015, 03:06 PM   #1541
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1994 30' Excella
1992 35' Airstream 350
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Quote:
Originally Posted by Keyair View Post
No, didn't disconnect or remove the radiator or hoses. Flex fan came out, and new one went in from below. Worked from doghouse above to position and get a couple of bolts in, then finished tightening from below.
Yes, if I go TBI the feed is from the rear with ss flex lines as standard.
You must have a different fan shroud, because i can not even get a wrench in there from below
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Old 12-15-2015, 03:08 PM   #1542
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1984 34.5' Airstream 345
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Yes, mine is different to that... it also has some "aftermarket" tinwork, but the center section is open... will get a pic tomorrow.
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Old 12-15-2015, 03:43 PM   #1543
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1974 20' Argosy 20
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A couple of things to look for. There is a curved metal guard between the frame rails right below the radiator. I see the guard in Peter's picture but I can't tell from Steve's pictures whether he has the guard there or not.

Also on the Classics with the horizontal radiator the plastic shroud is in two pieces. If the curved metal guard is not in place then the lower half of the plastic shroud should be able to removed for easier access to the fan.

The curved guard is riveted to the chassis frame rails from the factory but a lot of them have had the rivets ground off and replaced with bolts for easier access to the cooling fan, etc.

The 345 I dismantled had had a new engine installed at some point and the rivets were replaced with bolts. On my Argosy I have already removed the rivets and when I'm done installing the engine and radiator I'll use bolts to install the guard.

Steve, do you have the curved metal guard below the radiator?

Brad
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Old 12-15-2015, 05:20 PM   #1544
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Good info Brad.
I have a gap between the front x member and the radiator. From memory the fan shroud has a wing either side, that terminates with a piece of metal riveted to the plastic. I assume there should be a closing panel there then...
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Old 12-15-2015, 05:23 PM   #1545
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Quote:
Originally Posted by PeterH-Airstreamer View Post
You must have a different fan shroud, because i can not even get a wrench in there from below
Peter, that aluminum section on your radiator shroud is definitely a PO add on. Is the shroud underneath the aluminum busted up?
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Old 12-15-2015, 05:24 PM   #1546
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Quote:
Originally Posted by Keyair View Post
Good info Brad.
I have a gap between the front x member and the radiator. From memory the fan shroud has a wing either side, that terminates with a piece of metal riveted to the plastic. I assume there should be a closing panel there then...
Take pictures when you get a chance. I'm wondering if the metal guard under the radiator is missing in action. If it is I have the one of the 345...

Brad
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Old 12-15-2015, 07:20 PM   #1547
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Quote:
Originally Posted by bkahler View Post
Peter, that aluminum section on your radiator shroud is definitely a PO add on. Is the shroud underneath the aluminum busted up?
I am the CO who did that, not the prettiest but it sure does the job. Yes the shroud was busted.
That curved metal guard is not under the radiator on the 310, its right under the harmonic balancer and it seems to guard the brakes lines. It is riveted to the frame. And my shroud is a 1 piece. So, major pain to get to anything in the area.
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Old 12-15-2015, 08:07 PM   #1548
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Quote:
Originally Posted by PeterH-Airstreamer View Post
I am the CO who did that, not the prettiest but it sure does the job. Yes the shroud was busted.
That curved metal guard is not under the radiator on the 310, its right under the harmonic balancer and it seems to guard the brakes lines. It is riveted to the frame. And my shroud is a 1 piece. So, major pain to get to anything in the area.
If it works thats all that matters.

I guess I need to look in the barn to see if I still have the shroud from the 345...
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Old 12-15-2015, 08:11 PM   #1549
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Let me know how the 7 blade works, I am in the process of taking the seven blade off my 1979 GMC Jimmy and putting it on the 325....cannot find a seven blade anywhere. PS....still looking for the Alcoa's !
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Old 12-15-2015, 08:46 PM   #1550
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Here is what I know Bob...
California spec '87 R2500/3/4T Suburban with 454/TH400, rear AC and tow package was fitted with the 7 blade. All others had 5 blades.
7 blades are rare... you can't find them new... I have 2!
Scoured the Junk Yards for them.
Living in the southwest, I don't think I can go wrong... max cooling if the Viscous Coupling can keep up.

Anyone wants a Flexfan and fittings off my 345, it's yours for the shipping!

Nothing from the Alcoa seller BTW Bob... letting that one go.
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Old 12-15-2015, 09:00 PM   #1551
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Now I am upset with you Peter...
I see your engine has the lower timing marks... mine does not.
Lets see how dedicated the smog inspector is when he has to check my timing!

On that note, no AS time today as it was Obamacare deadline day(I do health Insurance), but this was in my mailbox..
Correct 4 way check valve between carb and distributor!


Oh, and I have 80' of silicon 3/4" heater hose on the way too!
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Old 12-16-2015, 06:01 AM   #1552
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3am and I am awake thinking about my to do list!

An issue with the smog pump came up yesterday. I had taken the diverter valve off it to aid with the mounting of the actual pump body, so I thought I should test it before I mount. It's has failed internally. After a search it seems they are NLA... I hope I can find a working one somewhere.
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Old 12-16-2015, 06:15 AM   #1553
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Quote:
Originally Posted by Keyair View Post
3am and I am awake thinking about my to do list!

An issue with the smog pump came up yesterday. I had taken the diverter valve off it to aid with the mounting of the actual pump body, so I thought I should test it before I mount. It's has failed internally. After a search it seems they are NLA... I hope I can find a working one somewhere.
tried Rockauto, they list three? RockAuto Parts Catalog
Product Detail
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Old 12-16-2015, 06:59 AM   #1554
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Steve, I still have the smog pump and some misc smog hardware from the 345. If you're unsuccessful finding what you need give me some info and I'll see what I have laying around.

Brad
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Old 12-16-2015, 07:17 AM   #1555
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Quote:
Originally Posted by Keyair View Post
Here is what I know Bob...
California spec '87 R2500/3/4T Suburban with 454/TH400, rear AC and tow package was fitted with the 7 blade. All others had 5 blades.
7 blades are rare... you can't find them new... I have 2!
Scoured the Junk Yards for them.
Living in the southwest, I don't think I can go wrong... max cooling if the Viscous Coupling can keep up.

Anyone wants a Flexfan and fittings off my 345, it's yours for the shipping!

Nothing from the Alcoa seller BTW Bob... letting that one go.
How well did the Flexfan keep the Engine temperatures in check. Since it is a direct drive I would believe it would reduce Engine temperatures better than the Viscous Coupling Fan. If that is the case I may be interested in the Flexfan.
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Old 12-16-2015, 07:51 AM   #1556
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I fiqured the seven blade would be better than the five, last year's trips were trips where the 325 constantly ran hot, no chance of towing my car with the dolly. Radiator will go to the shop to either be re-cored or upgraded to 4 row if possible.
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Old 12-16-2015, 08:15 AM   #1557
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I had no issues with overheating on my maiden voyage, but it was in April, so cooler. The flex is a 6 blade, and whilst it worked well, it just seemed too noisy to me.
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Old 12-16-2015, 01:10 PM   #1558
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I hope I'm not too far off point here.
Before you make an effort to replace the fan it might be a good idea to listen to the OEM metal fan. It's a noisy bugger too.
Summer before last during a trip to Ca. My fan was almost always engaged. It drove me nuts. On the occasions that it did quiet down the contrast was wonderful, big sigh of relief.
That was part of the reason that I replaced most of the cooling system before this last summers trip.

That noisy trip was with a new fan clutch installed. But the running temps were above the setting in the clutch to engage most of the time.

I replaced the clutch on warranty when I got back from that trip but the new one was about the same. That was when I realized that running at 205 was just too hot for the clutch.

Now with the cooling system working better the fan clutch engages when you want it too, long hard climbs. Super hot weather sitting traffic etc.
It is very effective in bringing down the temp quickly when it does. The temp of engagement seems around 200 degrees sometimes less.

In this case it may pay to look upstream for the real solution to that issue.

Cheers Richard
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Old 12-16-2015, 01:17 PM   #1559
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Peter, I had looked on Rockauto, as they are normally great but nothing listed for my year/model. The link you posted took me to the main page, and a search of diverter valves didnt give me any that matched. I searched my part #17084016 and nothing.
I will post a pic of it when I get a min.

Barad, if by chance you find that pump, and its the same as mine, i sure we can reach an agreement!
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Old 12-16-2015, 03:48 PM   #1560
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Quote:
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Peter, I had looked on Rockauto, as they are normally great but nothing listed for my year/model. The link you posted took me to the main page, and a search of diverter valves didnt give me any that matched. I searched my part #17084016 and nothing.
I will post a pic of it when I get a min.

Barad, if by chance you find that pump, and its the same as mine, i sure we can reach an agreement!
I'll look this evening when I go up to the barn to feed the donkey.
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